Cooper, who is filming scenes for his upcoming movie A Star Is Born at Worthy Farm this weekend, had the honour of introducing Kristofferson on stage, saying: “You guys were awesome, that was great. It’s my sheer pleasure to introduce Kris Kristofferson.”

Depp, meanwhile, later joined Kristofferson to perform the track ‘On Sunday Morning Coming Down’ – a collaboration that Kristofferson called “an honour.”

Towards the end of the set, the cameras panned to the side of the stage to briefly show Pitt watching on. The actor showed his appreciation in the standing section, where he was spotted watching Kristofferson next to BBC presenter Jo Whiley.